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Item #:
27049815
AquaNatural Coarse Aragonite 20lb for Reef, Saltwater and Marine Aquariums, Sand
85% of respondents would recommend this to a friend
Item #:
27049815
AUD 54
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Order now and get it around Thursday, September 10
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Sustainably sourced and with numerous advantages, our marine aragonite sand is the ideal substrate for maintaining a healthy and balanced aquarium ecosystem.
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What Stands Out
Natural Composition
Made from 100% natural aragonite, this substrate supports biological filtration and promotes a healthy ecosystem for coral and marine life, ensuring optimal water parameters in aquariums.
Superior Grain Size
The coarse grain structure enhances water flow and reduces detritus accumulation, minimizing maintenance efforts and providing a clean, stable environment for reef inhabitants.
Versatile Use
Designed for various marine applications, this 20lb aragonite sand is perfect for reef tanks, saltwater setups, and marine environments, catering to a wide range of aquatic enthusiasts.
Product Details
| Brand Name | Aqua Natural |
| Unit Count | 1 Pounds |
| Manufacturer | Pisces USA |
| Included Components | 1 x bag of coarse aragonite |
| Item Type Name | Coarse Aragonite |
| Model Number | ARAGC020 |
| Manufacturer Part Number | ARAGC020 |
| Liquid Volume | 20 liters |
| Item Weight | 9 kg |
| Item Form | Granules |
| Pet Type | Fish |
| Target Species | Fish |
| Allergen Information | Abalone Free |
| Product Dimensions | 14.96 x 2.76 x 11.81 inches (38 x 7 x 30 cm); 19.84 pounds (9 kg) |
| Brand | Aqua Natural |
Who Should Buy?
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Reef Aquarium Owners
Ideal for creating natural habitats and maintaining stable pH in reef tanks with sensitive coral species.
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Marine Fish Enthusiasts
Provides a suitable substrate for fish species that thrive in sandy environments, promoting their health and well-being.
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Aquarium Hobbyists
Perfect for those looking to enhance the aesthetics and functionality of their saltwater or marine aquariums.
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Freshwater Tanks
Not suitable for freshwater aquariums as it can alter pH levels and harm freshwater species.
Product Description
AquaNatural Coarse Aragonite 20lb for Reef, Saltwater and Marine Aquariums, Sand
About This Item
Looking for the perfect substrate for your marine aquarium? Look no further than AquaNatural Coarse Aragonite 20lb. Made from marine aragonite, this substrate is naturally occurring and biogenic, meaning it was created by living organisms. Not only is it sustainable, but it helps protect the reef by reducing the need for harmful chemicals in your aquarium. What makes AquaNatural Coarse Aragonite 20lb superior to other substrates is its unmatched buffering capacity and pH balancing capabilities.
With no added chemicals, this substrate maintains a natural pH balance of 8.2, making it the ideal substrate for marine, reef or African Cichlid aquariums. Not only is AquaNatural Coarse Aragonite 20lb sustainable, but it is also made from the crystal clear oceans of the Bahamas. This pure marine aragonite sand is tasteless, odorless, dustless and provides over 1 million sq. cm of surface area per kg for ammonia, nitrate, and nitrite reducing bacteria, making it the superior choice for aquarium enthusiasts. The ideal grain size for reef tanks, fish tanks, plenum systems, and refugees, AquaNatural Coarse Aragonite 20lb offers near chemical purity, consistent sizing, and small grain structure, giving it numerous advantages that make it stand out from the rest.
Whether you are looking for white, black, or natural aquarium sand, AquaNatural Coarse Aragonite 20lb is the perfect choice for discerning aquarium enthusiasts who want a superior substrate that is sustainable, biogenic, and pH balancing.
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Customer Questions & Answers
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Question:
What is AquaNatural Coarse Aragonite?
Answer: AquaNatural Coarse Aragonite is a natural substrate for reef, saltwater, and marine aquariums. Comprising calcium carbonate, it provides a suitable environment for marine life while maintaining optimal pH levels. This substrate is ideal for aquarists looking to replicate a vibrant marine ecosystem. Using aragonite helps to stabilize your aquarium's water chemistry, benefiting coral growth and enhancing the overall health of your aquatic environment. -
Question:
How does AquaNatural Coarse Aragonite benefit reef tanks?
Answer: AquaNatural Coarse Aragonite serves as more than just decorative sand; it plays a crucial role in maintaining water quality in reef tanks. Its porous structure supports beneficial bacteria that aid in breaking down waste, while its high calcium content promotes coral vitality. Marine organisms thrive when using this substrate, making it particularly beneficial for aquarists who wish to cultivate diverse marine life and delicate coral species. -
Question:
Is AquaNatural Coarse Aragonite suitable for a new aquarium setup?
Answer: Yes, AquaNatural Coarse Aragonite is an excellent choice for both new and established aquariums. Its ability to buffer pH levels is particularly advantageous during the critical cycling process of a new tank. Moreover, incorporating this substrate can enrich the biological environment immediately, providing a stable base for both bacteria and marine life to flourish. For beginners, it's a reliable option that enhances both aesthetics and functionality. -
Question:
How do I properly clean AquaNatural Coarse Aragonite before use?
Answer: Before adding AquaNatural Coarse Aragonite to your aquarium, it’s essential to rinse it thoroughly to remove any dust or debris from packaging. Place the sand in a clean bucket, and use running water to rinse until it runs clear. This process ensures a clean environment for your marine life and prevents potential water cloudiness after setup. Once rinsed, you can layer it in your aquarium as desired. -
Question:
What marine life benefits from AquaNatural Coarse Aragonite?
Answer: AquaNatural Coarse Aragonite is beneficial for a variety of marine life, including crustaceans, fish, and corals. The substrate allows burrowing species, like gobies and certain shrimp, to thrive by mimicking their natural habitats. Moreover, corals benefit from the calcium content, promoting growth and vibrant colors. When setting up a diverse marine ecosystem, this aragonite provides a natural and functional base for various species. -
Question:
Does AquaNatural Coarse Aragonite affect water chemistry?
Answer: AquaNatural Coarse Aragonite positively influences water chemistry in marine aquariums by acting as a buffer. The calcium carbonate composition helps maintain stable pH levels, which is critical for the overall health of your saltwater environment. Specifically, it can prevent pH swings, creating a more conducive habitat for sensitive marine creatures, making it an integral part of your aquarium setup. -
Question:
Can AquaNatural Coarse Aragonite be used in freshwater aquariums?
Answer: AquaNatural Coarse Aragonite is primarily designed for saltwater and marine aquariums. While it can technically be used in freshwater setups, it may alter the water’s pH and hardness, leading to potential issues with freshwater fish. For best results, it is recommended to use substrates specifically tailored for freshwater environments unless you’re focusing on certain fish that thrive in harder water conditions. -
Question:
How much AquaNatural Coarse Aragonite do I need for my aquarium?
Answer: The amount of AquaNatural Coarse Aragonite you need depends on your aquarium's dimensions and the desired depth of substrate. A general rule is to aim for a depth of 1-2 inches, which provides adequate coverage and promotes biological activity. For instance, in a 55-gallon aquarium, approximately 35-40 pounds of aragonite would create a suitable depth, ensuring a healthy and aesthetically pleasing environment. -
Question:
How does AquaNatural Coarse Aragonite compare to other substrates?
Answer: AquaNatural Coarse Aragonite sets itself apart from other substrates by its natural composition, focusing on balancing the water chemistry's pH and calcium levels. Unlike gravel or finer sands, coarse aragonite provides efficient water circulation and prevents anaerobic spots, which can lead to harmful gas buildup. Its use in marine ecosystems specifically fosters a thriving environment for both soft and hard corals. -
Question:
Where can I buy AquaNatural Coarse Aragonite 20lb for reef, saltwater, and marine aquariums in Australia?
Answer: You can purchase AquaNatural Coarse Aragonite 20lb for reef, saltwater, and marine aquariums on Ubuy. Ubuy offers a convenient shopping experience, letting you browse various marine products while ensuring availability in Australia. Their platform allows you to explore different shipping options, making it easier to get the substrate delivered right to your door.
Aqua Natural Sand ARAGC020 Editorial Review
The AquaNatural Coarse Aragonite 20lb is an excellent product that delivers as advertised. It is perfect for aquariums, especially reef, saltwater, and marine tanks. The sand has a beautiful white appearance and is just the right level of coarseness to avoid it from blowing around. However, it may cause some slight clouding initially, but with a quick wash, it clears up and adds a new life to the tank. It is highly recommended to rinse the sand thoroughly before adding it to the tank to prevent any cloudiness.
Customer Reviews & Ratings
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Pros
- Delivers as advertised
- Perfect for reef, saltwater, and marine aquariums
- Beautiful white appearance in the tank
- Does not blow around
Cons
- May cause slight clouding initially
Platform Trust & Buyer Confidence
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Chris
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“Promt delivery. Seems like a good product.”
22 July 2026 · via Trustpilot
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“It was the best service ever received by any company from my online shopping experience in the last 10yrs”
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“so easy to order delivery was way earlier than i expected”
3 July 2026 · via Trustpilot
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Gavin
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“Very impressed with the speed at which I received my package from the United States to Australia. Highly recommended.”
21-Jul-26 · via Trustpilot
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Jeannie
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“Very efficient service. Hassle-free. Excellent product. Have ordered several times.”
17-Jul-26 · via Trustpilot
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AUD 54
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